Martinstraka8282
Head-Fier
Right, I wasnt disputing that really, just talking out loud as im confused about a couple parts of what was happening in my testing. Number one would be, why could I get much more volume when Im connected elsewhere on the same files. On some files I tried, that were to low to satisfy on my M9, actually had to be turned down when connected to a couple other devices. That appears to potentially be a plex volume normalization instead, as that was the app I was playing the same source files on other devices and I see some normalization auto setting enabled in my plex menu. I will have to try a music app with no gain or normalization instead, but that probably answers that.Again, the M9 has nothing to do with playback volume with Bluetooth, it simply sends a signal to the receiving chip where all the decoding and amplification is done. I am not sure why people think the M9 is doing anything to the signal to change playback volume. You can't compare the wired playback to Bluetooth, that seems problematic as in reality you might as well be comparing two different headphones. The M9 acts as a signal transmitter, that is it. The playback device is responsible for the amplification.
The connection of why I can adjust the volume on the M9 for BT, as well as on the headset confuses me a little but I get what youre saying and should just let it go. So the volume on the M9 isnt actually increasing the output signal, but rather telling the headset to go louder, even though the headset has its own volume it controls separately, is that right?
The wired connections were more to just demonstrate that they need to be heavily moderated with the M9 and its not that my ears are shot or im listening at insane levels. It seems bluetooth headsets, or at least the 3 I own, are all just lacking in volume headroom via bluetooth connection. Having since read a lot of complaints about bluetooth headset volumes and the PXC550 in particular and that being the lowest of the 3, it makes some sense. The PXC being able to go significantly louder via both active or passive wired connection, tells me the bluetooth functionality of it is what makes it incapable of reaching the volumes I want, not the headphones themselves. Like you said, different animals, but in my primitive understanding it tells me the headphones are capable, just not the bluetooth side of it.I am stuck having to be dissatisfied, sell/move on, or apply significant preamp to songs below 95db when listening on the BT sets I own. ReplayGain standard is 89db and that is intolerable on these headsets imo. I'll be interested to try other sets I can get my hands on and see how loud they go.
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